Since concrete is the most used building material, cement which acts as a binder is one of the most important building elements which has cost implications if not well optimized. You may want to do a check of the cement quantity for your building project. Kindly follow the process below in this case:
Assumptions:
Slab area= 180 square meters
Slab thickness= 150mm (6 inches)
Lenght of beam = 130 meters
Floor slab cement calculation
Number of bags of cement required= Volume of concrete x number of bags per cubic meters
Number of bags per cubic meter varies between 4 and 7 depending on the target mix strength
1:2:4 mix= approx 7 bags of cement per cubic meter
1:3:6 mix= approx 4 bags of cement per cubic meter
5 bags of cement per cubic meter is optimal considering cost and quality
Volume of slab= Slab Area x Slab thickness
Slab area= 180 sq.m
Thickness used= 150mm
Volume of slab= 180 x .15m
27m3
Beams and slabs are mostly casted together, hence:
Volume of beams= Total length of beams x width of beam x Height of beam
=130m x 0.225m x 0.3m= 8.8 m3
Total volume= 35.8 cubic meters
Cement bags required= 35.8 cubic meters x 5 bags per cubic meter
= 179 bags of cement
Nice one here.
How do you now determine the sand components for same quantity of cement.
This is so difficult
Dear Eugine, it’s not difficult once you can derive the volume and multiply by the required factor.